Alexa Web SearchSee how popular a web site is, also displays the trendAlexa provides information about websites including Top Sites,Internet Traffic Stats and Metrics, Related Links, Online Reviews Contact Informationand Search Analytics for SEM and SEO optimization. The Alexa Toolbar is a browser add-onthat shows data about sites as you surf the webin Internetwith enginegraphsinternetsearchsitetraffictrendwebby 2 users

RRDtool - Computing amount of data transferedRRDtool stores rates during time intervals. Sometimes you do not want to know the rate (how many bytes per second), you just want to know the total amount of bytes. This can be done, no problem. Please make sure you understand how RRDtool normalizes and consolidates its data. This is explained on my RRDtool - Rates, normalizing and consolidating page. That page already covers most of what you need to know about this subject. You are expected to know its contents in order to understand this page.in Computers > Linuxwith computingdatagraphsrrdrrdtooltricks